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only add public IPs to the sbc_addresses table when listening on multiple interfaces

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Dave Horton
2023-07-24 13:45:20 -04:00
parent f759fae56e
commit fe0b3e34c5
1 changed files with 18 additions and 1 deletions
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19
app.js
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@@ -143,7 +143,24 @@ srf.on('connect', (err, hp) => {
}
}
map.forEach((addr) => {
// Function to check if the IP address is in a private subnet (RFC 1918)
const isPrivateSubnet = (ip) => {
const [firstOctet, secondOctet] = ip.split('.').map(Number);
return (
(firstOctet === 10) || // 10.0.0.0/8
(firstOctet === 172 && secondOctet >= 16 && secondOctet <= 31) || // 172.16.0.0/12
(firstOctet === 192 && secondOctet === 168) // 192.168.0.0/16
);
};
logger.info({ips: [...map.entries()]}, 'drachtio sip contacts');
const mapOfPublicAddresses = map.size === 0 ? map : new Map(Array.from(
map.entries())
.filter(([key, value]) => !isPrivateSubnet(key)));
logger.info({ips: [...mapOfPublicAddresses.entries()]}, 'drachtio sip public contacts');
mapOfPublicAddresses.forEach((addr) => {
addSbcAddress(addr.ipv4, addr.port, addr.tls_port, addr.wss_port);
// keep alive for this SBC
setTimeout(() => {